Journal-box.



J. D. JONES.

JOURNAL BOX.

APPLIOATION FILED MAR. 29, 1907'.

Patented 0ct.20,190. 8.

Witnesses g. Q 61mm,

JEFFERSON DAVIS JONES, OF TEMPLE, TEXAS.

JOURNAL-B OX.

Specification of Letters Patent.

Patented Oct. 20, 1908.

Application filed March 29, 1907. Serial No. 365,373.

To all whom it may concern:

Be it known that I, JEFFERSON DAVIS J ONES, a citizen of the United States, residing at Temple, in the county of Bell and State of Texas, have invented new and useful Improvements in Journal-Boxes, of which the following is a specification.

This invention relates to improvements in journal boxes for the axles of railway cars and the like and particularly to a novel construction of roller-bearing and lubricating means therefor, the object of the invention being to provide a construction of journal box in which a series of bearing rollers may be mounted in a novel manner to allow the journal to turn freely and to effectually withstand the strain falling thereon, and to provide a simple type of lubricating means for effectually lubricating the meeting surfaces of the journal and bearillg.

The preferred embodiment of the inventi on is illustrated in the accompanying drawing, in which Figure 1 is a front elevation of a journal box embodying my invention. Fig. 2 is a vertical transverse section thereof. Fig. 3 is a vertical front to rear section thereof taken centrally through the box.

Referring to the drawing, 1 designates a portion of the truck of a car, 2 a hanger bracket carried thereby, 8 a car axle, 1 a wheel mounted thereon, and 5 the journal of the axle. The journal box is mounted for vertical movement in the usual manner in the bracket 2, and comprises upper and lower sections 6 and 7, the meeting faces of which are formed to provide an annular chamber 8 receiving the journal 5. The sections 6 and 7 are detachably connected by vertical bolts 9 and are slidably engaged with the bracket in any preferred manner. The inner or rear side of the chamber 8 is closed by a rear cover 10 having an opening 11 therein of sufficient size to receive the outer unreduced end of the axle 3, while the forward end of the chamber is closed by a cover plate 12, said plates being secured in position by bolts 13 passing therethrough and through the box sections 6 and 7. The journal 5 is of reduced size with respect to the body of the axle 3 and is provided at its outer end with a collar or head 13 coextensive in diameter with the axle, thus forming with the coijperating parts of the box an annular runway around the journal to receive a series of bearing rollers 14. These rollers hold the journal properly spaced from the wall of the box and permit it to turn with a minimum degree of friction. The cover plate 12 is provided with an opening to receive the journal-head 18 and is provided on its outer side in line with said opening with an integral offset 14. forming an oil or lubricant chamber 15, said enlargement having an upwardly extending neck cored to provide a passage 16 through which the oil or lubricant may be introduced. into said chamber. The upper end of the neck terminates in an externally threaded nipple 17 engaged by a threaded closing cap 18. The head 13 is slightly smaller in diameter than the opening in the plate 12 to form an intervening narrow feed duct 19 which communicates with the oil chamber 15. The head 13 regulates the size of this duct, so that but a restricted amount of oil can pass therethrough into the chamber 8. The inner side of the duct is also partially closed by the outer ends of the rollers 14, so that the amount of oil passing to the rollers cannot at any time be greater than that which would be taken up by the rollers and transmitted by the motion of the parts to the contacting surfaces, thus retaining a body of oil in the chamber 15 and preventing the journal box from being flooded therewith.

It will be seen that the construction of the box is such as to permit of ready assemblage and disassemblage of its parts and that the joints are close enough to restrict the entrance of dust and dirt to the interior, while the arrangement of the parts of the journal and the roller bearings serve to secure a coaction between them to regulate the feed of the oil thereto from the oil chamber. Hence waste of oil will be effectually prevented.

Having thus described the invention, what is claimed as new, is

In a journal bearing for axles, the combination of a journal box comprising a horizontally divided body embodying upper and lower sections forming a bearing chamber, vertical tie-bolts connecting said sections on opposite sides of said chamber, a cover plate closing the outer side of the bearing chamber and formed with an opening and an integral central vertical exterior enlargement providing an oil chamber communicating through said opening with the bearing chamber, said enlargement being formed in its upper end with a filling passage communicating at its lower end with the oil. chamber and projecting at its upper end above the box, a screw cap engaging and closing the projecting upper end of said passage, a cover plate closing the inner side of the bearing chamber and having an opening therein, horizontal tie bolts connecting and fastening said cover plates to the body of the box, an axle provided with a journal extending into said bearing chamber through the opening in the inner cover plate and having a head projecting into and partially closing the opening in the outer cover plate to provide a restricted annular feed duct between it and the wall of the opening, and rollers about the axle having their outer ends arranged to partially close said feed duct to secure a restricted feed of oil therethrough and having their inner ends arranged to partially close the joint between the axle and wall of the opening in the inner cover plate.

In testimony whereof, I aflix my signature in presence of two witnesses.

JEFFERSON DAVIS JONES. \Vitnesses W. L. J oNns, H. M. JONES. 

